Also if you want a txt file of these instructions I have made them available here.

Next, unzip the file

Make sure you have "show hidden folders" enabled under the folders option in your Start -> Control Panel menu.

Now move the unzipped directory to C:\users\*your_user_name*\Appdata\local\Apps\2.0\mcst..tion_ e7ba95bf63da1a4e_0000.0000_8295f17bcae6f0ac where "mcst..tion_e7ba95bf63da1a4e_0000.0000_8295f17bcae6f0ac" is the name of the directory that you just unzipped and pasted into that folder.

Finally run the executable : Media Center Studio.exe file.

I have a complete guide on how to use MCS over at my blog as well as 18 themes with instructions on how to use the themes.